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Titration concentration calculation watch

1. Hello to all. I have titrated a calcium hydroxide (Ca(OH)2) solution against a hydrochloric acid solution. The hydrochloric acid has a concentration of 0.030 mol dm-3. I need to calculate the concentration of the calcium hydroxide solution. Does anyone know how I can do this...
My average titre was 20.38 CM3.
Any help or ideas would be so cool.
Thankyou
2. (Original post by freshj)
Hello to all. I have titrated a calcium hydroxide (Ca(OH)2) solution against a hydrochloric acid solution. The hydrochloric acid has a concentration of 0.030 mol dm-3. I need to calculate the concentration of the calcium hydroxide solution. Does anyone know how I can do this...
My average titre was 20.38 CM3.
Any help or ideas would be so cool.
Thankyou
You need the equation Ca(OH)2) + 2HCl --> CaCl2 + 2H2O
n=c x v
n = 0.030 x 0.02038
n = 0.0006114 mols of HCl

divide by 2 as the ratio is 2:1 will give you the mols of Ca(OH)2)

=0.0003057 mols of Ca(OH)2)

c=n divided by v
c = 0.0003057 divided by 0.02038 = 0.015 mol dm -3

I'm not sure if this is totally correct but its how i did mine so i hope this helps!
3. (Original post by freshj)
Hello to all. I have titrated a calcium hydroxide (Ca(OH)2) solution against a hydrochloric acid solution. The hydrochloric acid has a concentration of 0.030 mol dm-3. I need to calculate the concentration of the calcium hydroxide solution. Does anyone know how I can do this...
My average titre was 20.38 CM3.
Any help or ideas would be so cool.
Thankyou
for any titration calculation,use te following equation?
(Concentration*VOlume)/no. of moles (of acid) = (Concentration*volume)/no .of moles (of base)

wher no of moles is calculated from balancing an equation
good luck
4. (Original post by omario)
for any titration calculation,use te following equation?
(Concentration*VOlume)/no. of moles (of acid) = (Concentration*volume)/no .of moles (of base)

wher no of moles is calculated from balancing an equation
good luck
oooooooh man......I really hate dis subject.....yuk....
5. Ahh chemistry calculations are lovely.
6. (Original post by omario)
for any titration calculation,use te following equation?
(Concentration*VOlume)/no. of moles (of acid) = (Concentration*volume)/no .of moles (of base)

wher no of moles is calculated from balancing an equation
good luck

I got my average titration at 9.20 because i diluted the hcl to 0.1m is that ok,

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Updated: March 23, 2004
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